20 Best Window Companies in Castle Pines, CO (2023 Reviews)
Looking to improve your property's energy efficiency? The best window replacement companies can help.
We analyzed all the top-rated window companies in Castle Pines and selected the best 20 based on:
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Customer reviews
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Window installation expertise
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Popularity with home-owners like you
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Updated September 15, 2023
Why you can trust EcoWatch
Whether you're doing renovations or have damaged windows, windows play a crucial role in conserving your home's electricity. Drafty windows can cost you in energy bills. As a matter of fact, the Department of Energy estimates that 25-30% of your house's heat or cool air could be lost through your windows.
That's bad news for both your bank account and the environment, but one of the best window installation companies can help with that.
We've made this guide on the best installation companies to help you in your research, so you can not only enjoy brand new windows, but also save money on your electricity bills.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
Best Window Installation & Replacement Companies in Castle Pines
The EcoWatch Reviews team researched dozens of window installation companies across Castle Pines to narrow our list down to the top ones. We assessed the companies based on their energy-efficient offerings, price, customer service, coverage area, local experience and more.

Window World
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EnergyStar Partner
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Large serice area
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Low prices relative to competitors
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Great industry reputation
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Lifetime warranty
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Quality of service will depend on your area
Window World has windows expertise in Castle Pines. It's the largest window replacement company in the country, known for its vinyl windows and affordability. This company has been in business since 1995 and currently services 200 locations nationwide. Its reputation is backed by hundreds of positive reviews on customer review websites.
You may want to consider going with Window World if you're looking for a installer that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital.
Energy Efficiency of Window World WindowsWindow World carries some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want high-quality Energy Star windows when inquiring. Its high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home.
How much does Window World cost in Castle Pines?Window World doesn’t have any cost information available on its website, but it's known for offering some of the most affordable window installations around. Requesting a free quote on its website is the best way to know for sure.

Renewal by Andersen
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Great industry reputation
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Award-winning company
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Member of US Green Building Council
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Manufactures products in-house
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No lifetime warranty
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More expensive than competition
Renewal by Andersen has the best availability in Castle Pines. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This company has been in business since 1995 and currently services nearly every state except Mississippi and West Virginia. Its reputation is backed by hundreds of positive reviews on customer review websites.
You may want to consider going with Andersen if you're looking for a installer that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started.
Energy Efficiency of Renewal by Andersen WindowsRenewal by Andersen carries some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want high-quality Energy Star windows when inquiring. A handful of windows manufactured by the Andersen corporation were awarded Energy Star’s “Most Efficient” in 2021, and Andersen was named Energy Star’s Partner of the Year in 2019.
How much does Renewal by Andersen cost in Castle Pines?Andersen doesn’t have any cost information available on its website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. Requesting a free quote on its website is the best way to know for sure.

Universal Windows Direct
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Makes charitable contributions
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Manufactures products in-house
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Wide variety of products and services
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Lifetime warranty
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Limited service area
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Some installations carried out by third-party contractors
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Quality of service will depend on your area
Universal Windows Direct provides the best warranty in Castle Pines. It's a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. Universal has around 20 years of experience in the window replacement business. Its reputation is backed by all the positive reviews on customer review websites.
It has an industry-leading warranty covering products, parts and workmanship for life.
Energy Efficiency of Universal Windows Direct WindowsUniversal Windows Direct has some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to mention that you want Energy Star windows when inquiring. The company offers energy-efficient UniShield brand windows. According to its website, UniShield window packages have higher gas fill rates and longer gas retention than most other brands on the market, and they are Energy Star products.
How much does Universal Windows Direct cost in Castle Pines?Universal doesn’t have any cost information listed on its website, but installations typically range from $225 to $425 per window based on customer feedback. That makes Universal Windows Direct more of a budget-friendly option for window repair and replacements. The best way to know for sure is to ask for a free quote from the company.
We've recommended companies with shining reputations, but bear in mind that some national companies have independently owned locations in Castle Pines, so the quality of service may depend on your local crew. We have tried to be unbiased and transparent by listing pros and cons for every company reviewed.
More Window Companies in Castle Pines
Renewal by Andersen Window Replacement
Denver, CO-
Price Transparency
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Free assessment
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Good Customer Service
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Educational Website
Services Offered
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Sliding Glass
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Double-Hung
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Window Replacement
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Full-Service Installations
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Energy-Efficient Options
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Commercial Windows
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Bay Windows
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Fast Delivery
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Residential Windows
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Custom Window Designs
Champion Replacement Windows of Denver
Denver, CO-
Price Transparency
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Free assessment
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Good Customer Service
Services Offered
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Residential Windows
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Window Replacement
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Sliding Glass
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Custom Window Designs
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Double-Hung
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Bay Windows
Window World of Denver
Denver, CO-
Price Transparency
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Good Customer Service
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Educational Website
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Timely Service
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Free assessment
Services Offered
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Fast Delivery
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Glass Showers
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Energy-Efficient Options
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Window Replacement
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Residential Windows
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Commercial Windows
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Stained Glass
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Double-Hung
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Custom Window Designs
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Aluminum Window Frames
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Sliding Glass
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Bay Windows
Champion Replacement Windows of Colorado Springs
Colorado Springs, CO-
Free assessment
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Price Transparency
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Good Customer Service
Services Offered
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Sliding Glass
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Window Replacement
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Custom Window Designs
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Bay Windows
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Double-Hung
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Residential Windows
Window Nation
Aurora, CO-
Price Transparency
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Free assessment
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Educational Website
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Good Customer Service
Services Offered
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Double-Hung
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Stained Glass
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Energy-Efficient Options
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Sliding Glass
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Residential Windows
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Window Replacement
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Bay Windows
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Custom Window Designs
5280 Exteriors
Centennial, CO-
Educational Website
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Price Transparency
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Timely Service
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Good Customer Service
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Free assessment
Services Offered
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Commercial Windows
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Glass Showers
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Custom Window Designs
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Residential Windows
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Window Replacement
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Aluminum Window Frames
CMC Windows and Doors
Centennial, CO-
Good Customer Service
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Educational Website
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Free assessment
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Price Transparency
Services Offered
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Full-Service Installations
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Custom Window Designs
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Stained Glass
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Double-Hung
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Residential Windows
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Window Replacement
Glass Doctor of Englewood, CO
Centennial, CO-
Educational Website
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Price Transparency
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Good Customer Service
Services Offered
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Window Replacement
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Commercial Windows
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Window Repair
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Double-Hung
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Custom Window Designs
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Residential Windows
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Glass Showers
Colorado Windows and Restoration
Highlands Ranch, CO-
Educational Website
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Good Customer Service
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Free assessment
Services Offered
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Double-Hung
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Custom Window Designs
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Residential Windows
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Window Replacement
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Commercial Windows
Home Design Exteriors
Parker, CO-
Price Transparency
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Good Customer Service
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Educational Website
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Free assessment
Services Offered
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Residential Windows
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Commercial Windows
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Custom Window Designs
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Window Replacement
Highlands Ranch Replacement Windows by Design
Highlands Ranch, CO-
Free assessment
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Price Transparency
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Good Customer Service
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Educational Website
Services Offered
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Window Replacement
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Residential Windows
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Double-Hung
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Commercial Windows
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Custom Window Designs
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Bay Windows
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Sliding Glass
Ken Caryl Glass, Inc.
12450 Mead Way, CO-
Timely Service
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Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Commercial Windows
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Window Replacement
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Custom Window Designs
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Glass Showers
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Residential Windows
Storm Exteriors
Centennial, CO-
Timely Service
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Free assessment
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Educational Website
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Price Transparency
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Good Customer Service
Services Offered
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Commercial Windows
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Window Replacement
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Custom Window Designs
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Residential Windows
Sloan Windows & Construction
Centennial, CO-
Price Transparency
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Free assessment
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Educational Website
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Timely Service
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Good Customer Service
Services Offered
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Custom Window Designs
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Double-Hung
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Window Replacement
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Aluminum Window Frames
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Residential Windows
Paramount Siding & Windows
Littleton, CO-
Educational Website
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Free assessment
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Good Customer Service
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Price Transparency
Services Offered
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Double-Hung
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Residential Windows
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Sliding Glass
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Window Replacement
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Bay Windows
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Custom Window Designs
High West Glass
Castle Rock, CO-
Good Customer Service
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Educational Website
Services Offered
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Fast Delivery
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Window Replacement
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Residential Windows
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Glass Showers
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Custom Window Designs
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Commercial Windows
Scottish Home Improvements
Centennial, CO-
Timely Service
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Educational Website
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Free assessment
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Price Transparency
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Good Customer Service
Services Offered
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Stained Glass
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Energy-Efficient Options
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Window Replacement
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Commercial Windows
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Custom Window Designs
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Residential Windows
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Double-Hung
Home Services at The Home Depot
Highlands Ranch, CO-
Educational Website
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Price Transparency
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Free assessment
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Good Customer Service
Services Offered
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Custom Window Designs
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Stained Glass
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Residential Windows
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Commercial Windows
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Fast Delivery
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Window Replacement
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Glass Showers
Beyers Window & Door Inc
Centennial, CO-
Educational Website
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Free assessment
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Price Transparency
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Timely Service
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Good Customer Service
Services Offered
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Custom Window Designs
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Glass Showers
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Double-Hung
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Fast Delivery
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Window Replacement
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Residential Windows
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Sliding Glass
HRTI
Greenwood Village, CO-
Free assessment
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Good Customer Service
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Price Transparency
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Educational Website
Services Offered
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Double-Hung
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Custom Window Designs
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Full-Service Installations
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Window Replacement
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Residential Windows
Calculate how much you can expect to pay for window installation and replacement in Castle Pines, CO using our customized window cost calculator.
Estimates will vary based on window dimensions and other unique factors to your home. Getting in touch with a local window installer is the best way to get an accurate cost estimate for your home.
How Installing Energy-Efficient Windows in Castle Pines Saves You Money
Energy-efficient windows can offer benefits in several ways. Here are a few reasons you may want to take the plunge and make the switch:
- Decrease your carbon footprint: Since energy-efficient windows improve the insulation in your house, you can reduce your carbon footprint by about 12%, according to Energy Star.
- More efficient energy usage in your home: In Castle Pines where the summers can be quite hot, energy-efficient windows decrease the amount of cool air that is lost through your windows, which makes it easier to keep your home cool.
- Save on electricity bills: The Department of Energy estimates that heat gained or lost through windows accounts for about 25-30% of energy use in your home. Switching to energy-efficient windows can help decrease that number, which helps you save $443 a year on your bills.
- Protect your investment: Keeping your windows up to date is an important part of maintaining your property and its real estate value, especially if your home is on the older side.
Estimated Cost of Window Replacement in Castle Pines
Windows come in all shapes and sizes, so costs and services will vary tremendously. Here are the average costs and the primary services that you'll find from window installation companies.
How Much Do New Windows Cost?
Although the national average to install a single window is about $600, it can range from $200 to $1,200. How much it will cost varies based on several factors, including number of windows, the location of your home, size, type, material and more.
It's also worth noting that energy-efficient windows will cost more initially, but Energy Star predicts that switching out the windows on your Castle Pines home translates to an average energy savings of $236 to $319 each year for single-pane window replacement, or between $87 to $126 each year for double-pane windows. How much you'll save by upgrading to energy-efficient windows varies based on your local climate, energy rates and other factors unique to your home.
We recommend getting free quotes from several window installation companies to find the one that works best for you.
What Services do Window Installers Offer?
The first question to ask yourself when planning a window installation is: Should you get a full-frame installation or a pocket installation?
A full-frame installation is a replacement of the total window. This service involves taking out the old window, the windowsill, and the exterior and interior trim. It can also involve other materials, such as insulation and drip edges, which raise the total cost of the project. It's also worth noting that you may have to touch up the paint surrounding the window after a full-frame installation. Pocket installations are simpler and won't cost as much, as they entail merely replacing the window within its existing frame. But if the frame has any damage, you may have to get a full-frame installation instead.
Your window installer can help you choose which type of installation you should get.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
How We Choose the Best Window Installers in Castle Pines
EcoWatch is different from most reviewers since we look at these companies through a sustainability lens. We have evaluated the top window installation companies in Castle Pines mainly based on energy efficiency, as it's the most sustainable option and the best one for homeowners. Energy Star certified windows can cut your energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology considers the following factors:
Service Area
This one is pretty self-explanatory, but we've chosen to highlight window installation companies that serve a wide variety of states and cities so you can find the right window installation company near you.
Work Quality
When installing new windows, the quality and variety of services can often play just as important of a role in insulation and performance as the brand you choose. We do give window installers more points if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.
Customer Reviews
We analyzed trends in recent online reviews to determine the companies with the most consistent customer satisfaction. Customer satisfaction may be the factor we place the most value on, as it indicates the quality of services across nearly every category, including warranty, professionalism, cost, quality of parts, quality of installation and more.
Cost
Cheaper windows certainly don't mean better windows, but we know many of our readers try to keep costs low when possible. When analyzing providers' prices, we awarded higher points to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
Protecting your investment in new windows is important to many homeowners. For that reason, window installation companies that provide lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Because of Castle Pines' climate, homeowners need to be wary of rot, low efficiency and water damage. We factored in local experience to reflect the ability of Castle Pines window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.
Castle Pines, CO Window Replacement FAQs
What is the average cost to install new windows?
The national average cost to replace one window is around $600 but can range between $200 and $1,200, depending on a few different factors. The price is usually dependent on the type and material of the window, the location of your property and the size of the window. Also, remember that energy-efficient windows may cost more initially but can save you a decent amount of money a year in energy bills.
What are the different types of windows?
There are several different kinds of windows you can get for your house, such as picture windows, slider windows, double-hung and single-hung windows, awning windows, casement windows, transom windows and bay windows.
Do you really need to use a window installation company?
You should use a window installation company whenever you need to upgrade your windows. Installing windows is a complex process that can be difficult and time-consuming, so it's best handled by the professionals.
How often should you replace your windows?
Windows have an average lifespan of about 20 to 30 years. If your windows are older than that, then they probably need to be replaced. Other than that, if your windows have any damage on them, or they have become difficult to open or close, they may be in need of replacement.
Should I replace all my windows at the same time?
If your windows are greater than 20 years old, it's most likely time to replace all of them. At that point, they are typically less efficient, draftier and/or more damaged than new windows. Replacing your windows all at once will involve less paperwork and less time.